Adjustable punching bag

ABSTRACT

An adjustable punching bag includes an outer jacket bag and an inner bag set received in the outer bag. The inner bag set contains core stuffing, in which the content and kind of the stuffing can be adjusted to change the weight of the entire punching bag for meeting different practicing needs of users. Further, it is convenient to pack, store all parts thereof to lower delivery cost.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to an adjustable punching bag andparticularly to a punching bag, which provides adjustable weight andhardness and is able to be folded for packing, storing and deliveringconveniently.

2. Brief Description of the Related Art

The punching bag is frequently used during practicing skill of art ofattack and defense. In order to meet different personal needs, punchingbags in different weights are available for being chosen as desired.However, it is known that a lot of punching bags have to be prepared andthe volumes of the punching bags are huge such that problems with regardto storage, packing and delivery in addition to handling cost are worthus to care.

As the foregoing, the conventional punching bag occupies limited space,requires high delivery cost. And, it is unable for the user to adjustweight thereof suitable for personal practice habit and load carryingability. How to solve the preceding problems is a subject has to beovercome.

SUMMARY OF THE INVENTION

An object of the present invention is to provide an adjustable punchingbag to improve deficiencies of being not possible for weight adjusting,packing and storing.

Another object of the present invention is to provide an adjustablepunching bag, with which it is not necessary for manufactures tofabricate punching bags in different weights and to worry about unsoldpunching bags in stocks.

In order to achieve the preceding objects, the adjustable punching bagof the present invention includes an inner bag set and an outer jacketbag. The outer jacket bag provides an inlet for receiving the inner bagset. The inner bag set includes a first inner bag, a second inner bagand multiple daughter bags. The second inner bag and the daughter bagsare filled with stuffing and placed in the outer jacket bagsequentially. The stuffing provides with gradients in differentdensities for controlling weight of the entire punching bag. Thestuffing can be liquid, solid or gas. Liquid can be water, liquids indifferent specific weights or curdled glue formed of water with agent.Solid can be plastic air bag or lead blocks, which affect weight. Gas iscapable of occupying space for decreasing weight. Even more, thestuffing can be any mixture of liquid, gas and solid. Thus, the weightof the punching bag is under control and the required weight can beobtained and precise training of skill with regard to art of attack anddefense can be achieved. The cap knob at the top of the second inner bagcan be removed to take out the daughter bags or the cap knob at thebottom of the second inner bag can be removed to release the stuffingcompletely. Further, the outer jacket bag and the inner bag set can befolded and stored in a box simply for being carried with the userconveniently.

BRIEF DESCRIPTION OF THE DRAWINGS

The detail structure, the applied principle, the function and theeffectiveness of the present invention can be more fully understood withreference to the following description and accompanying drawings, inwhich:

FIG. 1 is a perspective view of an adjustable punching bag according tothe present invention;

FIG. 1A is a perspective view similar to FIG. 1 illustrating theadjustable punching bag of the present invention being in a state ofusing less chambers;

FIG. 2 is a perspective view illustrating the first inner bag and thesecond inner bag of an adjustable punching bag according to the presentinvention;

FIG. 2A is a perspective view similar to FIG. 2 illustrating the firstinner bag and the second inner bag of an adjustable punching bagaccording to the present invention being in a state of using lesschambers;

FIG. 3 is a perspective view illustrating the second inner bag of theadjustable punching bag according to the present invention;

FIG. 4 is a sectional view of an adjustable punching bag according tothe present invention;

FIG. 5 is another illustrating sectional view of an adjustable punchingbag according to the present invention illustrating the punching bagbeing in use;

FIG. 5A is a top view of the first inner bag;

FIG. 5B is a top view of a soft rubber pad being attached to the secondinner bag;

FIG. 5C is a plan view illustrating the state of using less chambers;and

FIG. 6 is a perspective view illustrating all parts of the adjustablepunching bag according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 3, an adjustable punching bag apparatus of thepresent invention includes an inner bag set and an outer jacket bag 30.The outer jacket bag 30 provides several pieces of metal chains 31 and atying cord 32 at the upper end thereof. The inner bag set includes afirst inner bag 10, a second inner bag 20 and a plurality of daughterbags 23.

Wherein, the outer jacket bag 30 receives the inner bag set and themetal chains 31 is used for hanging the outer jacket bag 30. The tyingcords 31 are used for closing the opening of the outer jacket bag 30.

Referring to FIG. 5A in company with FIG. 2 again, the first inner bag10 is composed of a plurality of chambers 12 and each of the chambers 12is injected with gas via a gas hole 121 till being fully expanded.Alternatively, each of the chambers 12 provides an opening at the topthereof for filling foam sealing agent or tiny polystyrene foam balls toexpand as a bag with increased hardness. In case of the foam sealingagent being used, less air chambers are needed as shown in FIGS. 1A, 2Aand 5C. Further, a soft rubber pad 13 is placed at the bottom of thefirst inner bag 10 for supporting the weight of the second inner bag 20.

Referring to FIG. 4 in company with FIG. 3, the second inner bag 20 hasan inlet at the upper end thereof for receiving stuffing and daughterbags 23 and a cap knob 22 is joined to the inlet by way of supersonicwelding. The lower end of the second bag 20 is joined with a dischargehole 21 by way of the supersonic welding for discharging the stuffingand regulating weight thereof and another cap knob is provided at thedischarge hole 21. In order to facilitate operation for opening andclosing of the cap, a recess type handle 221 is provided at the cap asshown in FIGS. 4 and 5.

Referring to FIGS. 5, 5A and 5B, when the adjustable type punching bagof the present invention is in use, gas is injected into the chamber 12in the first inner bag 10 via the gas hole 121 as shown in FIG. 5A tofully expand the first inner bag 10 and the first inner bag 10 isreceived in the outer bag 30. The soft rubber pad 13 is disposed betweenthe first inner bag 10 and the second inner bag 20 as shown in FIG. 5Bto bear the weight of the second inner bag 20. Further, the soft rubberpad 13 has a central hole 131 for being closed by the cap knob 21 suchthat the liquid in the second inner bag 20 can be released via thecentral hole 131. Then, the second inner bag 20 is received in the firstinner bag 10 and water L is poured into the second bag 20 to increasethe overall weight of the punching bag. If the second inner bag 20 isunable to fill up the preset weight of water, a plurality of daughterbags 23 are filled with gas and placed in the second inner bag 20 toallow the water L in the second inner bag 20 distributing evenly withoutforming the upper space of the second inner bag 20 being soft caused bylacking the water L. Besides, the daughter bags 23 can be stuffed withhigher density material to increase the weight of the punching bag suchthat the weight of the punching bag is capable of being under control.

It is appreciated that the adjustable punching bag of the presentinvention is to change the weight of the whole punching bag by means ofchanging quantity and kind of the stuffing in the inner bags and thereis no restriction to limit the quantity and the kind of the usedstuffing and it can be mixed based on the need of the user. Further, thecap knob 21 at the bottom of the second inner bag 20 is opened first todischarge the water L in the inner bag 20 after the punching bag hasbeen done completely. Then, the cap knob 22 is opened and the daughterbags 23 are taken out with the gas in the daughter bags 23 beingreleased. Thus, all the bags are folded and placed in a box B forstorage and being carried with the user. In case of the soft bags beingused, the box B can be reduced in size for being stored, packed anddelivered more conveniently.

While the invention has been described with referencing to a preferredembodiment thereof, it is to be understood that modifications orvariations may be easily made without departing from the spirit of thisinvention, which is defined by the appended claims.

1. An adjustable punching bag, comprising an outer jacket bag, providinga mouth with tying and hanging members at the top thereof; and an innerbag set, providing a first inner bag and a second inner bag, the secondinner bag being received in the first inner bag and the second inner bagbeing filled with a first stuffing; wherein, quantity or kind of thestuffing is changeable for controlling and adjusting weight of thepunching bag.
 2. The adjustable punching bag as defined in claim 1,wherein the first inner bag is made of hardened foam filling agent. 3.The adjustable punching bag as defined in claim 1, wherein the firstinner bag has a plurality of chambers with an upper opening respectivelyfor being stuffed with filling agent.
 4. The adjustable punching bag asdefined in claim 1, wherein the first inner bag has a plurality ofchambers and provides at least a gas hole for being injected with gas.5. The adjustable punching bag as defined in claim 3, wherein thefilling agent is liquid, solid and/or gas.
 6. The adjustable punchingbag as defined in claim 1, wherein a plurality of daughter bags arereceived in the second inner bag and each of the daughter bags isreceived with a second stuffing, which is different the first stuffing.7. The adjustable punching bag as defined in claim 1, wherein a plasticpad is disposed beneath the first inner bag to strengthen capability ofbearing for the outer jacket bag and to stabilize center of gravity ofthe inner bags.
 8. The adjustable punching bag as defined in claim 1,wherein the second inner bag has a cap member at the upper and lower endthereof for receiving or releasing stuffing.
 9. The adjustable punchingbag as defined in claim 1, wherein the first stuffing is liquid, solidand/or gas.
 10. The adjustable punching bag as defined in claim 6,wherein the daughter bags are made of soft rubber.
 11. The adjustablepunching bag as defined in claim 8, wherein the cap member has a recesshandle.
 12. The adjustable punching bag as defined in claim 1, furthercomprises a cord member for closing the mouth.
 13. The adjustablepunching bag as defined in claim 1, wherein the cord member is metalchain.